19162780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10529}}^1$

素因数の和:10558

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 30370340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10529, 21058, 42116, 52645, 73703, 105290, 136877, 147406, 210580, 273754, 294812, 368515, 547508, 684385, 737030, 958139, 1368770, 1474060, 1916278, 2737540, 3832556, 4790695, 9581390, 19162780]

約数ペア:

[(1, 19162780), (2, 9581390), (4, 4790695), (5, 3832556), (7, 2737540), (10, 1916278), (13, 1474060), (14, 1368770), (20, 958139), (26, 737030), (28, 684385), (35, 547508), (52, 368515), (65, 294812), (70, 273754), (91, 210580), (130, 147406), (140, 136877), (182, 105290), (260, 73703), (364, 52645), (455, 42116), (910, 21058), (1820, 10529)]